public class Triangle4{
	public static void main(String[] args){
		int numberOfLines = Integer.parseInt(args[0]);

		for(int firstIterator = 1; firstIterator<=numberOfLines; firstIterator++){
			for(int secondIterator = 1; secondIterator<=firstIterator; secondIterator++){
				System.out.print("*");
			}
			System.out.print("\n");
		}
		
	}
}